C Craig New member Dec 25, 2010 #1 this REDUCE gas mileage? Is there any reason a car company would program a car to do this? With car companies trying to INCREASE gas mileage, it seems to me like this causes the opposite effect.
this REDUCE gas mileage? Is there any reason a car company would program a car to do this? With car companies trying to INCREASE gas mileage, it seems to me like this causes the opposite effect.
